Article info

Download PDFPDF

The hardening hypothesis: does it matter?
  1. Correspondence to Graeme Docherty, Division of Epidemiology and Public Health, UK Centre for Tobacco Control Studies, C100, Clinical Sciences Building 2, University of Nottingham, City Hospital, Hucknall Road, Nottingham NG5 1PB, UK; graeme.docherty{at}
View Full Text


Docherty G, McNeill A
The hardening hypothesis: does it matter?

Publication history

  • First published February 16, 2012.
Online issue publication 
February 16, 2012

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.